Home / 685,977.64-946,662.18-384,170.92

Finding the Fourth Proportional to 685,977.64, 946,662.18 and 384,170.92

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Solution

The fourth proportional to 685,977.64, 946,662.18 and 384,170.92 is: 530,163.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,977.64 : 946,662.18 = 384,170.92 : x
  2. Step 2: Convert to fraction form
    685,977.64/946,662.18 = 384,170.92/x
  3. Step 3: Cross multiply
    685,977.64x = 946,662.18 × 384,170.92
  4. Step 4: Simplify right side
    685,977.64x = 363,680,080,619.81
  5. Step 5: Solve for x
    x = 363,680,080,619.81/685,977.64
  6. Step 6: Final answer
    x = 530,163.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.